How do I find a location's region, and how does a pair-with-underground or sky card work?

Question

Accepted Answer

Look up the location in the Look storybook to get its region letter, then turn to the Book of Vantages pages for the paired location. Viewing it only gives information; you do not travel there. For a structure's Move entry, use the number of the location where you gained it, not the structure's own number.